Showcase (noun)

1. A glass-fronted cabinet or display case used for displaying items, particularly in a shop or museum.
2. An event, exhibition or presentation at which something, such as a new product, is displayed.
3. An opportunity or means of displaying or demonstrating one's abilities or qualities.

Origin:

Showcase first recorded in the mid-19th century, from the phrase "show case" which refers to a case or cabinet used to display items for viewing.

Examples:

1. The jewelry store had a showcase with diamonds and gold.
2. The new car was showcased at the auto show.
3. The student showcase featured the best work of the semester.
4. The actor's performance in the play was a showcase of his talent.
5. The company's website was used as a showcase for their products.